OPI Repair Mode Bond Building Nail Serum Keratin Protein Nail Strengthening Treatment For Stronger Nails Nail Growth

909+ bought in the past month

$24.99
$24.99

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Product details

BrandOPI
Item FormLiquid
Liquid Volume0.3 Fluid Ounces
SpecialtyProtein, Repair
Number of Items1

Technical specifications

languageEnglish
product_dimensions1.88 x 1.34 x 5.17 inches; 2.08 ounces
item_model_number99399000051
manufacturerOPI
best_sellers_rank#5,097 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #8 in Nail Strengtheners

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Customer reviews

4.26,497 ratings

Customers say

Customers report positive results with this nail serum, noting improved health and appearance, with nails growing past fingertips and becoming visibly healthier.

★★★★★

I'm a believer

CustomerDecember 29, 2025

I bought this as I was desperate to try anything. I have one little nail that refuses to grow in strong and keeps splitting down the center, vertically. I have kept it super short to try and not have it ripped off. I had polish on all the time. It took longer than advertised, more like 3-4 weeks to see results but it works. My nails are coming in stronger, less ridges, and that one nail is NOT splitting. Put it on twice a day with no polish or hardener or anything. Dries very fast. Really helps, I've seen a difference. Read more

★★★★★

Great for nails wrecked by gel manicures

Cynthia MPJanuary 12, 2026

Background: 11 years of gel manicures, occasional dip manicures, press-ons, and a recent run of semi-solid gel strips left me with brittle, split, ridged, and overall damaged nails. I almost never have taken a break between polish changes during that entire time. I was using Gemini AI to help come up with a plan to heal my nails, and one recommendation was this product + Nail Envy. I diligently applied this twice a day for 6 days, even taking it with me while traveling. It is a great way to do a forced reset, since you must apply this on bare nails. Day zero before applying I soaked my nails in warm water + olive oil, and I did this again on day 6 before my last dose. I did a full manicure on day 6, cleaning my cuticles with a glass cuticle stick, shaping nails (filing only in one direction!) and gently buffing. My nails looked so much better. My photo is the "before" from the manicure and it is hard to describe what an improvement this is from day 0 (even if it doesn't look like it). I didn't experience any of the nail lifing some people online describe with this product, and overall my nails seemed much more firm with less peeling. I do still have two nails which seem a bit soft in localized spots, so I'm going to get an ISDIN product with silica in it to see if I can correct that while they continue to grow out. I've applied Nail Envy in my "after," and although I don't like the nude color very much I do feel that overall the combo is helping my nails! I'm nervous not having the strength of a gel manicure, but will have to use gloves during dishes and stop using my nails as tools to try and keep them from breaking while they grow out. I'm going to try to go 6 months without gel using Repair Mode weekly with clear Nail Envy polish to recover from all of this damage. I blame myself because I'm not very patient with removing gels and press ones, so most of my damage is from pulling-trauma and acetone. I'm just so glad there is something out there to help my nails recover quickly! Read more

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★★★★★

Saved my nails!

C.N.December 8, 2025

I work in pharmaceuticals and have to wear nitrile gloves all day, every day. My hands sweat so my nails became soft, flaky, and brittle- they’d break before the end of the nail bed. This stuff changed all that. I LOVE that it soaks INTO the nail, it doesn’t sit on top, so it starts working with the first application. I’m terrible at remembering to apply it (I struggle to do it even once a week) but even so, my nails are long, whole, and strong for the first time in YEARS! 100/10 satisfaction Read more

★★★★☆

Effective and Strengthening — Really Works

AnnieNovember 15, 2025

I really like this bond building nail serum! It works well and has noticeably improved the strength and flexibility of my nails. My nails feel healthier, and it has helped increase their stretch without breaking. The application is easy, and it absorbs quickly without leaving a sticky residue. If you’re looking to strengthen your nails and keep them looking healthy, this serum is a great choice! Read more

★★★★★

Saved my nails!

It’s me!July 1, 2025

TLDR- GET THIS!!! It worked for me w/consistency and patience. Product is a watery consistency and dries fast! My nails had become thin and brittle, so my solution to keep them from bending and breaking below the free edge constantly, was to start keeping them coated in builder gel and UV gel polish. That worked great for a few years, but my nails were in desperate need of a break from having them constantly polished. Once all of the gel polish was off I knew I was in trouble. My nails were now beyond thin, they were paper thin and peeling. The slightest touch would bend them. It was painful. I couldn’t even scratch myself. And of course, when you know you can’t scratch, is when you become the itchiest human ever. It was torture. All of my nails actively hurt. So I went on the hunt for something that could help. I eventually settled on this OPI Repair Mode. It arrived and I started using it immediately and religiously. Twice a day, every day. Without fail. I had reminders set on my phone to be sure I didn’t forget (thanks, ADHD!). The product itself is thin and watery. Not at all like nail polish. And you don’t have to have a steady hand to apply it. Just slop it on, wait a minute or so and go. Super fast and easy! The first month of use I would go back and forth with myself trying to figure out if it was working or not. It was definitely working some and my nails had become less painful, but I still couldn’t scratch any itches I had. My nails were still thin and breaking, even though I kept them as short as possible. Toward the end of the second month is when I finally knew progress was being made. My nails weren’t peeling or painful anymore. And I was able to lightly scratch my itches again. Finally!! After a solid 2 months of use, I decided to cut down to using the product once a day and start incorporating revitalizing cuticle oil (I used Cuccio that I found here on Amazon) into my nail rehab routine. I would use the cuticle oil on my nails and the surrounding skin (rubbing it in as much as possible) in the morning and usually at least once during the day, then at night I’d put on the Repair Mode. I did that for a couple of weeks, then stopped using the Repair Mode altogether. Now I just use the oil a few times a day without a schedule or reminders. Just whenever I remember or feel like my nails are feeling extra dry. It’s been about 3 months now and my nails are almost back to what I’d call normal. I really hope this review helps anyone who was in my shoes. It’s not fun to have painful, bendy, peeling, breaking, nails, but there is hope! I hope this works for you like it did for me!! Read more

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